etcd集群搭建

etcd集群搭建

• 环境

 -  centos  192.168.3.65  node-1
 -  centos  192.168.3.66  node-2

• 关闭防火墙

systemctl stop firewalld

• etcd使用yum安装

yum install etcd
cp /etc/etcd/etcd.conf   /etc/etcd/etcd.conf.bak

• 集群配置

192.168.3.65 node-1 配置

vim /etc/etcd/etcd.conf

#[Member]
#ETCD_CORS=""
#ETCD_WAL_DIR=""
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"  #到数据目录的路径.
ETCD_LISTEN_PEER_URLS="http://192.168.3.65:2380" #用于监听伙伴通讯的URL列表
ETCD_LISTEN_CLIENT_URLS="http://192.168.3.65:2379, http://127.0.0.1:2379" #用于监听客户端通讯的URL列表
ETCD_NAME=node-1 #成员的可读性的名字
#ETCD_MAX_SNAPSHOTS="5"
#ETCD_MAX_WALS="5"
#ETCD_SNAPSHOT_COUNT="100000"
#ETCD_HEARTBEAT_INTERVAL="100"
#ETCD_ELECTION_TIMEOUT="1000"
#ETCD_QUOTA_BACKEND_BYTES="0"
#ETCD_MAX_REQUEST_BYTES="1572864"
#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"
#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"
#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"
#
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.3.65:2380" #列出这个成员的伙伴 URL 以便通告给集群的其他成员
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.3.65:2379" #列出这个成员的客户端URL，通告给集群中的其他成员
ETCD_INITIAL_CLUSTER="node-1=http://192.168.3.65:2380,node-2=http://192.168.3.66:2380" #为启动初始化集群配置
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" #在启动期间用于 etcd 集群的初始化集群记号(cluster token)
ETCD_INITIAL_CLUSTER_STATE="new" #初始化集群状态(“new” or “existing”)
#ETCD_DISCOVERY=""
#ETCD_DISCOVERY_FALLBACK="proxy"
#ETCD_DISCOVERY_PROXY=""
#ETCD_DISCOVERY_SRV=""
#ETCD_STRICT_RECONFIG_CHECK="true"
#ETCD_ENABLE_V2="true"

192.168.3.66 node-2 配置

vim /etc/etcd/etcd.conf

#[Member]
#ETCD_CORS=""
#ETCD_WAL_DIR=""
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://192.168.3.66:2380"
ETCD_LISTEN_CLIENT_URLS="http://192.168.3.66:2379,http://127.0.0.1:2379"
ETCD_NAME=node-2
#ETCD_MAX_SNAPSHOTS="5"
#ETCD_MAX_WALS="5"

#ETCD_SNAPSHOT_COUNT="100000"
#ETCD_HEARTBEAT_INTERVAL="100"
#ETCD_ELECTION_TIMEOUT="1000"
#ETCD_QUOTA_BACKEND_BYTES="0"
#ETCD_MAX_REQUEST_BYTES="1572864"
#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"
#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"
#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"
#
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.3.66:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.3.66:2379"
ETCD_INITIAL_CLUSTER="node-1=http://192.168.3.65:2380,node-2=http://192.168.3.66:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
#ETCD_DISCOVERY=""
#ETCD_DISCOVERY_FALLBACK="proxy"
#ETCD_DISCOVERY_PROXY=""
#ETCD_DISCOVERY_SRV=""
#ETCD_STRICT_RECONFIG_CHECK="true"
#ETCD_ENABLE_V2="true"

• 启动ectd

systemctl start etcd

• 验证集群

[[email protected] default.etcd]# etcdctl cluster-health
member c7e28f19b18e5b07 is healthy: got healthy result from http://192.168.3.66:2379
member dabb45fbb8cd1a2b is healthy: got healthy result from http://192.168.3.65:2379
cluster is healthy

[[email protected] default.etcd]# etcdctl member list
c7e28f19b18e5b07: name=node-2 peerURLs=http://192.168.3.66:2380 clientURLs=http://192.168.3.66:2379 isLeader=false
dabb45fbb8cd1a2b: name=node-1 peerURLs=http://192.168.3.65:2380 clientURLs=http://192.168.3.65:2379 isLeader=true